深井软岩巷道变形和加固对策

采用非连续变形分析软件(DDA)，首次对巷道围岩松动圈非连续体位移影响因素的变化规律进行了模拟研究，提出了巷道关键部位加强支护的理念。采用高强锚杆与喷射混凝土对高应力软岩巷道支护，并对巷道关键部位采取钢筋网加强支护，成功地解决了深井软岩巷道的支护难题。

The Reinforcement Method for Poor Rock Mass in Deep Mine

The changing rule of influential factors on displacement of discontinuous broken rock mass is studied quantitatively for the first time with the discontinuous deformation analysis program(DDA). It is proposed that the key part of underground constructions including the floor and especially the upper side of surrounding rocks should be reinforced in terms of support. For example, roadway of high-stress poor rock mass is supported with bolt of high-strength and by shotting concrete, and the support of key part of roadway is reinforced with reinforcing net. The problem of support for the roadway of poor rocks mass in deep mine was thus successfully solved.